In my chemical engineering design course we have to calculate the height of an absorber tower for a CCS(Carbon Capture and Storage) Plant with a capacity of 240,000 tonCO2/yr(27777kg/h). I used McCabe method but the height must be realistic and i have no idea if its realistic.What is the range or average height for the height of the absorber?

height and diameter of the tower depend on the production capacity. To know the actual height, we should know the HETP which depends on the efficiency. However, for an ideal case, you can assume the total number of trays (tray spacing) as the column height.